On Thu, 31 Jul 2008 05:59:27 pm Vlad Dumitrescu wrote:
> 2008/7/31 Hynek Vychodil <>
>> > There is functional difference, between <- and <= is not functional
> > difference.
> > There is not reason why
> > [X || <<X>> <- <<"abc">> ].
> > should not return same result as
> >
> > > [X || <<X>> <= <<"abc">> ].
> >
> > "abc"
>> Hi,
>> I might be mistaken here, but I think the issue is that the compiler
> generates completely different code for each case and when the generator
> looks like X <- Y, i.e. the right side is not a constant, it has to know
> which one to produce. The compiler can't guess from the source code,
> because for example <<X>> <- L is a very normal list generator, one can't
> assume L is a binary.
>> best regards,
> Vlad
Or they could define some virtual machine instructions for iterating over
collections so that the compiler's generated code is the same for all cases.
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